161Selection of fifth wheel couplings for B-doubles and road

161 Selection of fifth wheel couplings for B-doubles and road (1) A fifth wheel coupling used in a B-double or road train must have a D-value complying with Australian Standard AS 1773-1990 Articulated Vehicles–Fifth Wheel Assemblies.

Motor Vehicles (Standards) Regulations 2003 – Australian Vehicle Standards Rules 90 (2) A turntable used in a B-double or road train must have a D-value complying with Australian Standard AS 1773-1990 Articulated Vehicles–Fifth Wheel Assemblies. (3) If a fifth wheel coupling used in a B-double or road train is built for a 50 millimetre or 90 millimetre kingpin, the coupling must: (a) meet the dimension requirements in Australian Standard AS 1773-1990 Articulated Vehicles–Fifth Wheel Assemblies; and (b) not be worn away more than recommended by the standard. (4) If a fifth wheel coupling used in a B-double or road train is built for a 75 millimetre kingpin, the coupling must: (a) be compatible with the kingpin mentioned in rule 165(3); and (b) not be worn away so that it does not comply with rule 162.